Jacob h



J. H. BULL. Car-Coupling.

Patented June 8,1880.

g lllllllllllllllll ENTERS. FWTO-LNNOGMPKF-R. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

JACOB H. BULL,-()F HEREFORD, MARYLAND.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 228,599, dated June 8,1880.

Application filed November 15, 1879.

To all whom it may concern:

Be it known that 1, JACOB H. BULL, of Hereford, in the county ofBaltimore and State of Maryland, have invented certain new and usefulImprovements in Gar-Couplings; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,which form a part of this specification, and in which- Figure 1 is aside elevation of a draw-head embodying my improvement. Fig. 2 is alongitudinal vertical section of the same. Fig. 3 is a front elevation,and Fig. llS a plan or top view.

Similar letters of reference indicate corresponding parts in all thefigures.

This invention has relation to automatic cai couplings, or that class ofcouplings by which the draw-heads are coupled or linked together bycontact with each other; and it consists in the improvement hereinaftermore fully described, and particularly pointed out in the claim.

In the drawings, A is the draw-head, which, in the present illustrationof my invention, is of the bull-nose type or class. Placed above thedraw-head proper-is a plate, B,bent downward at its rear end, B, andperforated to admit of the insertion of a rod, D, which extends into thechamber a, formed by plate B and the draw-head. If desired, plate B maybe pro vided with downward-extending side flanges,-

so as to close the chamber a all around and prevent dust, &c., fromgetting into it.

The upper plate of the draw-head A is slotted, as shown at b, and intothis slotisinserted the triangular or beveled shoe 0 of a plate, 0,which slides upon the upper plate of the drawhead within the chamber a.The forward end of rod D is united to plate 0, and is encircled by acoiled spring, d, which impinges at one end upon the rear end of plate 0and at the other upon the perforated flange B, through which rod D isinserted. Into the bottom plate of the draw-head A is inserted atripblock, D, which serves the twofold purpose of tripping or raisingplate 0, with its shoe 0, up

through slot 1), when it is shoved back into the draw-head by theinsertion of the link, and of serving as an abutment for the link withinthe draw-head.

Upon the forward part of the upper plate, B, is an upward-projectingsleeve, 0, into which the coupling-pin E is inserted, with its pointbearing against plate O, when this is in its forward position, impelledby spring (I. When the link is inserted into the draw-head its forwardend, striking against shoe 0, forces this and plate 0 back from underthe pin, allowing this to drop by its own gravity through slot 1) andthrough the link, with its point projecting through an aperture in thebottom part or plate of the draw-head, the pin being prevented fromslipping through by a shoulder, f, at its upper end or head.

In the side view, Fig. 1, I have shown the coupling with the arrangementof its parts as before the insertion of the link, and in the sectionalview, Fig. 2, I have shown the link within the draw-head in its coupledposition. From this last-named figure it will be seen that after plate 0has been tripped to allow the coupling pin or bolt to drop it will flyback with the point of its shoe 0 impinging upon that part of the linkback of the coupling-bolt, so that upon the withdrawal of the bolt plate0 will at once reassume its normal position under the point or end ofthe bolt, and thus permit the link to be withdrawn from under plate 0and its beveled shoe 0.

Having thus described my invention, 1 claim and desire to secure byLetters Patent of the United States In a car-coupling, the combination,with the draw-head A, slotted at b, and provided with.

the tripping-block D and chamber a, of the rod D, spring 61, and plate0, having beveled shoe 0, projecting down into the draw-head through itsslot b, substantially as and for the purpose herein shown and described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

JACOB H. BULL.

Witnesses:

WILLIAM FOSTER, ARTHUR S. GARMAN.

